ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,514, issued on Dec. 16, was assigned to MERCEDES-BENZ GROUP AG (Stuttgart, Germany).

"Trim part having a two-dimensional light guide" was invented by Hubert Bieder (Denkendorf, Germany), Eva-Susanne Jaeger (Boblingen, Germany) and Daniel Betz (Rottenburg-Seebronn, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A two-dimensional light guide has at least three layers, including two layers formed as films have a lower refractive index than a light guidance layer arranged between them. One of the films has decoupling structures for the light. The layers form a film composite in which the light guidance layer is formed as a film. A lighting eleme...